If you get THAT clear and believe in some product, go ahead. Your audience trusts your word. But most folks need to use or experience before they can get clear, because they have a fear: the fear of using trust. I am slowly losing that fear but still use what I promote, before I promote it. I also just sell my stuff mainly. Since I have quite a few products and eBooks and services to sell.
Plus, consumers are more likely to rely on a trusted source for brand information than they are an advertisement. In the current state of influencers and rampant review sites, we’re looking to real people’s opinions more than we are static advertisements or TV commercials. With your affiliates comes the trust of networks they’ve previously established.
Writing blog posts is especially effective for providing different opportunities to land on page one of search engines -- for instance, maybe your eyeglass store’s website is on page three of Google for “eyeglasses,” but your “Best Sunglasses of 2018” blog post is on page one, pulling in an impressive amount of traffic (over time, that blog post could also boost your overall website to page one).
Content is king. It always has been and it always will be. Creating insightful, engaging and unique content should be at the heart of any online marketing strategy. Too often, people simply don't obey this rule. The problem? This takes an extraordinary amount of work. However, anyone that tells you that content isn't important, is not being fully transparent with you. You cannot excel in marketing anything on the internet without having quality content.